西安石油大学学报（自然科学版）2024，Vol.39Issue(4)：76-82,7.DOI:10.3969/j.issn.1673-064X.2024.04.011
井下应急封隔器结构设计及胶筒坐封效果评价
Structure Design and Rubber Cylinder Sealing Performance Evaluation of Downhole Emergency Packer
摘要
Abstract
To deal with the high-pressure overflow and well kick during offshore drilling,a downhole emergency packer was designed,and a metal skeleton was added between the inner and outer rubber cylinders to improve its sealing strength.To evaluate the setting effect of the downhole emergency packer,a finite element model was established and the whole setting process was simulated.The influ-ence of the metal skeleton on the contact stress and sealing effect of the the rubber cylinder was studied.The results show that the con-tact stress between the rubber cylinder and casing reaches 12.1 MPa at the sitting pressure of 20 MPa,and the packer can effectively block the overflow of 20 MPa.The peak stress and deformation of the rubber cylinder are decreased,and its sealing ability is significant-ly increased by adding the metal skeleton.The designed downhole emergency packer can effectively seal the high-pressure overflow and well kick,ensuring the safety of platform operation.关键词
井下应急封隔器/坐封/有限元/金属骨架Key words
downhole emergency packer/sitting sealing/finite element/metal skeleton分类
能源科技引用本文复制引用
李劲松,王磊,雷磊,郑铭,殷志明,黄小光,余焱群..井下应急封隔器结构设计及胶筒坐封效果评价[J].西安石油大学学报（自然科学版）,2024,39(4):76-82,7.基金项目
国家自然科学基金(52274026) （52274026）
中海油"十四五"重大科研项目(CCL2022SHPS006ET) （CCL2022SHPS006ET）
